sieve ring for impact bar 1 mm round perforation

Sieve ring for impact bar 1 mm round perforation

- special sieve ring and only for the use together with the impact bar -

Sieve rings determine the end fineness of the sample. 
Sieve rings with trapezoidal perforations and round perforations are available. Sieve rings with round perforations are recommended for grinding brittle materials and materials of medium fineness with small grain bands.
Sieve rings with trapezoidal perforations improve size reduction through extra shearing action.